C.1.21 acsnap start (Snapshot type Advanced Copy start command)

NAME

acsnap start - Starts snapshot type Advanced Copy.

SYNOPSIS

acsnap start -g COPY-GROUP [-p PAIR | -v VOLUME-NAME] [-r] [-xml]

[When starting the estimation of the amount of snap data volume updates:]
acsnap start -estimate -v VOLUME-NAME [-xml]

DESCRIPTION

Snapshot type copy is executed onto a specified copy group or pair.

It is also possible to start to estimate the number of updated blocks generated for the copy source volume.

If the -p option is not specified, a copy destination is automatically selected and Snapshot type copy is started.
If all copy destination volumes are generation-managed, the oldest snap generation is cancelled and selected as a copy destination.
If the -p option is specified, Snapshot type copy is started onto a specified copy destination.
If a past snap generation (excluding the oldest snap generation) is specified as a copy destination, this command ends abnormally.
If the -v option is specified, a copy destination for the specified copy source is automatically selected.

OPTIONS

-g COPY-GROUP

This option specifies the copy group name.
Only when the copy group type is as follows, a copy group is specifiable.

SnapOPCP

-p PAIR: This option specifies a copy pair.

-r

This option performs a copy in the reverse direction to the direction that has been specified.

The latest snap generation is selected as a copy source when the copy pair is not specified.

-v VOLUME-NAME

Specify a logical volume when selecting a copy destination automatically.

Also when starting to estimate the amount of snap data volume updates, specify a copy-source logical volume.

The following is an example of a format to specify a logical volume.

(1) ETERNUS name
(2) Logical volume number

-estimate: This option starts the estimation of amount of snap data volume updates.

-xml: This option specifies when displaying the result of the command execution by the XML format.

EXIT STATUS

=0: Completed successfully

>0: Terminated abnormally

EXAMPLES

C:\>acsnap start -g group01

DX80/0x1:DX80/0x6
# DATE : 2008/06/24 16:28:00 - << SnapOPCP Started >>

DX80/0x2:DX80/0x7
# DATE : 2008/06/24 16:28:00 - << SnapOPCP Started >>

DX80/0x3:DX80/0x8
# DATE : 2008/06/24 16:28:00 - << SnapOPCP Started >>

  Succeeded : 3
  Failed    : 0

[When starting to estimate the amount of snap data volume updates:]
C:\>acsnap start -estimate -v DX80/0x1
Successful completion

NOTES

When the copy type of a copy group is OPC, QuickOPC, EC or REC, this command ends abnormally.
This command is not available for ETERNUS Disk storage systems registered as a remote device.